Home
Class 9
BIOLOGY
What is smog ?...

What is smog ?

Text Solution

Verified by Experts

It is a dark fog formed by condensation of water vapours, dust smoke particles, and various gaseous pollutants (oxides of nitrogen and sulphur, hydrogen sulphide etc. ) in the troposphere.
Promotional Banner

Topper's Solved these Questions

  • NATURAL RESOURCES : OUR ENVIRONMENT

    PRADEEP|Exercise LONG ANSWER QUESTIONS|18 Videos

  • NATURAL RESOURCES : OUR ENVIRONMENT

    PRADEEP|Exercise QUESTIONS WITH ANSWERS|20 Videos

  • NATURAL RESOURCES : OUR ENVIRONMENT

    PRADEEP|Exercise SHORT ANSWER QUESTIONS|96 Videos

  • IMPROVEMENT IN FOOD RESOURCES

    PRADEEP|Exercise Model Test Paper|34 Videos

  • THE FUNDAMENTAL UNIT OF LIFE

    PRADEEP|Exercise ANALYTICAL|11 Videos

Similar Questions

Explore conceptually related problems

In the early December 2012, Capital Delhi was in news for smog due to increased air pollution. Smog resulted in reduced visibility and consequent road accidients, traffic jams,and also caused harmful effects to biotic components in the capital. (i) What is smog? Is it is primarily or secondary pollutant? (ii) Justify by giving two reasons why is it harmful to human beings.

What is found in photochemical smog -

What is photochemical smog and what are its harmful effects?

What is photochemical smog? How does smog affect the biological world?

What is photochemical smog ? Discuss the possible mechanism of its formation.

What is the composition of photochemical smog?

What is the composition of London smog ?

PRADEEP-NATURAL RESOURCES : OUR ENVIRONMENT-ADDITIONAL QUESTIONS
  1. Define eutrophication.

    Text Solution

    |

  2. Which compound is generally added to petrol to make it burn smoothly i...

    Text Solution

    |

  3. Name atleast one disease that occurs in human beings due to biomagnifi...

    Text Solution

    |

  4. What are the two forms of oxygen found in the atmosphere?

    Text Solution

    |

  5. What is smog ?

    Text Solution

    |

  6. How is ozone layer useful to us ?

    Text Solution

    |

  7. Name the two important biological processes in which air is essential.

    Text Solution

    |

  8. What is the fate of nitrogen gas that goes inside the lungs alongwith ...

    Text Solution

    |

  9. Name two common types of pollutants of air.

    Text Solution

    |

  10. Name the two acids that are present in acid rain.

    Text Solution

    |

  11. What is humus? What are its function?

    Text Solution

    |

  12. What is weatheirng ? Name atlest one fator responsible for weathering.

    Text Solution

    |

  13. What is meant by photochemical fixation of nitrogen ?

    Text Solution

    |

  14. Name two examples of green house gases which contribute maximum toward...

    Text Solution

    |

  15. What is ozone hole ? Where was it first located ?

    Text Solution

    |

  16. What is meant by soil erosion ?

    Text Solution

    |

  17. In which layer of soil profile one would find litter and humus ?

    Text Solution

    |

  18. What is the main constituent in the following types of soil ? (a) Bl...

    Text Solution

    |

  19. What do you mean by fossil fuels ? Give one example of these.

    Text Solution

    |

  20. Name the reservoir for the nutrient elemetnts in (a) gaseous cycles (b...

    Text Solution

    |